" is that like the chairman of the armed services committee saying, "i don't want to talk about the pentagon?" >> absolutely, yes. but i should say, that does seem to be a change in chairman upton's views before he took on this leadership. fred upton was, you know, has long been a moderate who's worked on this issue, who's reached across the aisle on these issues. before he became chairman of the house energy and commerce committee, on his website, he had the phrase that "climate change is a problem." that was deleted after he became chairman of the house energy committee. so, we're definitely seeing a shift on this. >> hockenberry: chairman upton declined frontline's request for an interview. but the congressman wasn't the only one not talking. in 2011, the national journal tried to poll all gop lawmakers on climate change. >> i came up with the idea to ask every republican member of congress three simple questions about climate change. they were very simple. they are basically, you know, "do you think that climate change is causing the earth to become warmer?" >> hockenberry: straightforwa